Video: Qhov kuaj bromine qhia li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv cov organic chemistry, lub bromine xeem yog qualitative xeem rau lub xub ntiag ntawm unsaturation (carbon-to-carbon ob los yog triple bonds) thiab phenols. Qhov ntau unsaturated ib tug tsis paub yog, the ntau bromine nws reacts nrog, thiab cov xim tsawg dua cov tshuaj yuav tshwm sim.
Yog li ntawd, dab tsi yog cov pov thawj pom ntawm qhov txiaj ntsig zoo rau kev kuaj bromine?
Thaum cov tshuaj tiv thaiv no tshwm sim, molecular bromine yog noj, thiab nws cov yam ntxwv tsaus liab-xim av xim ploj yog tias bromine tsis ntxiv nyob rau hauv ntau dhau. Kev ploj sai sai ntawm cov bromine xim yog ib kuaj qhov zoo rau unsaturation.
Ib yam li ntawd, baeyer qhov kev sim qhia li cas? Cov Baeyer xeem rau unsaturation yog rau kev txiav txim siab muaj cov pa roj carbon ob chav sib txuas, hu ua alkenes lossis carbon-carbon trible bonded compounds, hu ua alkyne bonds. Ib qho alkene hloov nrog diol (ib qho sib xyaw nrog 2 pawg hydroxy).
Ntawm no, dab tsi yog kuaj pom hauv bromine dej kuaj?
Cov bromine xeem yog qualitative xeem Rau qhov muaj alkenes, alkynes, thiab phenols. Ib qho kev daws teeb meem ntawm bromine muaj ib tug sib sib zog nqus reddish-xim av xim. Yog tias koj ntxiv cov tshuaj dropwise rau ib qho alkene lossis alkyne, xim yuav luag tam sim ntawd, vim tias cov khoom tsis muaj xim. Cov no yog cov tshuaj tiv thaiv ntxiv.
Kev kuaj bromine rau alkanes ua haujlwm li cas?
Ib qho yooj yim xeem nrog bromine dej siv tau los qhia qhov txawv ntawm ib qho alkane thiab alkene. Ib qho alkene yuav tig xim av bromine dej colorless li cov bromine reacts nrog carbon-carbon ob daim ntawv cog lus. Qhov tseeb, qhov tshuaj tiv thaiv no yuav tshwm sim rau cov khoom sib txuas uas tsis muaj cov pa roj carbon-carbon ob daim ntawv cog lus.
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